Clam-shell bucket.



N. 782,940. PATLNTLD FEB. 21, 1905. G. H. WILLIAMS. GLAM SHELL BUCKET.

APPLICATION FILED FEB. 25. 1904.

PATENTED FEB. 21, 1905.

G. H. WILLIAMS.

GLAM SHELLBUGKET. V APPLIUATION Hum PEB. z5. 1904.

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PATENTED FEB.l 21, 1905.

G H. WILLIAMS. LAM SHELL BUCKET.

APPLmATIoN FILED PEB. z5, 1904.

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PATENTED FEB. 21, 1905.

G. H. WILLIAMS. @LAM SHELL BUCKET.

APPLICATION FILED PEB. 25. 1904.

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UNITED STATES Patented February 21, 1905..

PATENT OEEIcE.

CLAM-SHELL BUCKET.

SPECIFICATION forming part of Letters Patent No. 782,940, dated February 21, 1905.

Application iiled February 25, 1904:. Serial No. 195,165.

10 all, whom zit may/'concern' Be it known that I, GRDON H. WILLIAMS, a citizen of the United States, and a resident of Cleveland, county of Cuyahoga, and State of Ohio, have invented a new and useful Improvement in Clam-Shell Buckets, of which the following' is a specification, the principle of the invention being herein explained and the best mode in which I have contemplated applying that principle, so as to distinguish it from other inventions.

My invention relates to clam-shell buckets, its object' being' to construct a bucket of such character as will be economical in its construction and eflcient in its operation.

Said invention consists of means hereinafter fully described, and particularly set forth in the claims. Y

The annexed drawings and the following description set forth in detail certain mechanism embodying the invention, vsuch disclosed means constituting but one of various mechanical forms in which the principle of the invention may be used.

In said annexed drawings, Figure 1 represents a plan of a bucket embodying my invention. Fig. 2 represents a side elevation thereof. Fig. Srepresents a vertical section taken upon the plane indicated by line 3 3, Fig. l; and Fig. 4 represents a vertical section taken upon the plane indicated by line 4 4, Fig. 2.

The frame of the bucket, as illustrated, consists of two side plates a a and a top plate a', held in proper relation to each other by the hereinafter-described parts. Joining the middle of the two side plates a a and fixed thereto is a transverse rod B, upon which rotates a sleeve C, formed with two drums c c, and a centrallylocated powenwheel C.

To the rear end of each scoop member D and at each side thereof is pivoted the lower end of one of four arms D, whose upper end is oscillatorily mounted upon rods Z, suitably secured to the frame, as shown in Figs. l, 3, and 4. Oscillatorily mounted upon each stud is the front end of one of four arms F, whose outer or rear end articulates, through the medium of arod n, with the lower end of an arm G, whose upper end is pivotally mounted upon a rod n., mounted in the upper part of the frame, as shown. There are hence four arms F and four arms G, each pair of arms F and Cr forming a knuckle-joint.

Upon each drum c is secured the inner ends of two chains or cables /L la., which respectively pass around sheaves /t L, mounted upon the corresponding side of the frame, four of such chains or cables being thus pivoted, as shown in dotted lines in Fig. 1. The outer ends of said chains or cables are secured to the joints formed bythe arms F and G, as shown in Fig. 3, so that by winding the chains or cables upon their respective drums the scoop members when in their open positions may be drawn toward each other and the bucket closed. During such operation the strain is transmitted through arm F to the front of the scoop members, as will be understood. Such closing is effected by a closing-cable j, which when pulled up winds from the power-wheel, a suitably-placed sheave 7e being mounted upon the top of the frame to guide such cable.

A rod Z, which incidentally is caused to form the pivotal journal for the arms D', is located transversely of each scoop member, Fig. l, and upon the middle of such rods are secured the ends of two opening-cables m on., respectively, which pass around guidingsheaves m' m' and m2 m2, as shown. It will therefore be seen that the scoop members may be caused to assume their open positions by drawing` up upon the said cables m m, as will be readily understood.

By providing the knuckle-joint arrangement described it will be seen that the scoop members are pulled through the material in which they operate by their front ends, and still permits the closing chains or cables to be actuated near the rear of their respective members, so as to cause the chains or cables to pull in the direction of movement of the members and allow a maximum force to be applied, in so doing' the said chains or cables remaining always in engagement with the sheaves L t.

Other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the mechanism herein disclosed, provided the means stated by any one of the following claims I OO or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as my invention-- l. In a clam-shell bucket, the combination of a supporting-frame, two scoop members each having two axes of oscillation iixed relatively to said frame, a'power-wheel mounted in the latter, and means including' chains or cables connecting' such power-wheel with said members.

2. In a clam-shell bucket, the combination of a supporting-frame, two scoop members, each of the latter supported at its front end from arms having a pivotal aXis in said frame, and its rear end supported from arms having a pivotal axis upon said frame, said last-named axes being' located upon opposite sides of the centralplane of the frame; a power-wheel, chains or cables connecting said wheel with the said members, and an opening-cable connected with each of the latter at its rear end.

3. In a clam-shell bucket, the combination oi' a supporting-frame, two scoop members each suspended from arms oscillatorily mounted upon said frame and connected with the front and rear ends or' such members respee tively, a power-wheel mounted upon such frame, and means including chains or cables connecting said power-wheel with said members and near the rear or outer ends thereof.

4. In a clam-shell bucket, thc combination of a supl'iorting-framc, two scoop members each suspended from arms oscillatorily mounted upon said frame and connected with the front and rear ends of said members respectively, a power-wheel mounted upon such frame and closing chains or cables connecting' said power-wheel with said scoop members respectively, and near the rear ends of the latter, and opening-cables connected with such rear ends respectively.

In a clam-shell bucket, the combination of a supportingframe, two scoop members, oscillatory arms suspended from said frame and supporting the front ends of said scoop members respectively, oscillatory arms suspended from said frame and supporting the rear ends ot' said scoop members respectively, a power-wheel mounted in said frame, arms pivotally supported upon the front ends of said members respectively and having their oscillatory ends located at the rear thereof, links suspended from said frame and connected with the said oscillatory arm ends, closing-cables connecting said power-Wheel with the said oscillatory arm ends. y

6. In a clam-shell bucket, the combination ot' a supporting-frame, a scoop member, a pair of arms oscillatorily mounted upon said frame and connected With the front end of said member, a pair ot' arms oscillatorly mounted upon said frame and supporting the rear end of said member, a pair of arms pivotally mounted in said member having their axes near the front end thereof and their os.

cillatory ends near the rear thereof, each of said latter arms having an axis of oscillation lixed relatively to said frame.

Signed by me this 23d day of February, 1904.

GURDON H. WILLIAMS.

Attest:

A. E. MERKEL, G. WV. SAYWELL. 

